CN100547500C - Holographic recording medium - Google Patents
Holographic recording medium Download PDFInfo
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- CN100547500C CN100547500C CNB2004800400329A CN200480040032A CN100547500C CN 100547500 C CN100547500 C CN 100547500C CN B2004800400329 A CNB2004800400329 A CN B2004800400329A CN 200480040032 A CN200480040032 A CN 200480040032A CN 100547500 C CN100547500 C CN 100547500C
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- 239000010410 layer Substances 0.000 claims abstract description 78
- 239000011241 protective layer Substances 0.000 claims abstract description 48
- 239000000758 substrate Substances 0.000 claims abstract description 43
- 230000005540 biological transmission Effects 0.000 claims abstract description 16
- 206010034960 Photophobia Diseases 0.000 claims abstract description 12
- 208000013469 light sensitivity Diseases 0.000 claims abstract description 12
- 239000000463 material Substances 0.000 claims description 56
- 238000012856 packing Methods 0.000 claims description 21
- 239000011358 absorbing material Substances 0.000 claims description 16
- 230000002093 peripheral effect Effects 0.000 claims description 11
- 230000003287 optical effect Effects 0.000 claims description 9
- 239000005304 optical glass Substances 0.000 claims description 5
- 239000007767 bonding agent Substances 0.000 claims description 4
- 230000035945 sensitivity Effects 0.000 abstract description 6
- 206010070834 Sensitisation Diseases 0.000 description 5
- 239000003505 polymerization initiator Substances 0.000 description 5
- 230000008313 sensitization Effects 0.000 description 5
- 230000006870 function Effects 0.000 description 4
- 238000002835 absorbance Methods 0.000 description 3
- 108091008695 photoreceptors Proteins 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000033458 reproduction Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 230000031700 light absorption Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 238000006552 photochemical reaction Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 230000001235 sensitizing effect Effects 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- GOLXNESZZPUPJE-UHFFFAOYSA-N spiromesifen Chemical compound CC1=CC(C)=CC(C)=C1C(C(O1)=O)=C(OC(=O)CC(C)(C)C)C11CCCC1 GOLXNESZZPUPJE-UHFFFAOYSA-N 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000012719 thermal polymerization Methods 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
- G03H1/00—Holographic processes or apparatus using light, infrared or ultraviolet waves for obtaining holograms or for obtaining an image from them; Details peculiar thereto
- G03H1/02—Details of features involved during the holographic process; Replication of holograms without interference recording
- G03H1/0252—Laminate comprising a hologram layer
- G03H1/0256—Laminate comprising a hologram layer having specific functional layer
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
- G03H1/00—Holographic processes or apparatus using light, infrared or ultraviolet waves for obtaining holograms or for obtaining an image from them; Details peculiar thereto
- G03H1/02—Details of features involved during the holographic process; Replication of holograms without interference recording
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
- G03H1/00—Holographic processes or apparatus using light, infrared or ultraviolet waves for obtaining holograms or for obtaining an image from them; Details peculiar thereto
- G03H1/26—Processes or apparatus specially adapted to produce multiple sub- holograms or to obtain images from them, e.g. multicolour technique
- G03H2001/2625—Nature of the sub-holograms
- G03H2001/263—Made of different recording materials
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
- G03H2250/00—Laminate comprising a hologram layer
- G03H2250/34—Colour layer
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
- G03H2250/00—Laminate comprising a hologram layer
- G03H2250/37—Enclosing the photosensitive material
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
- G03H2250/00—Laminate comprising a hologram layer
- G03H2250/39—Protective layer
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
- G03H2260/00—Recording materials or recording processes
- G03H2260/12—Photopolymer
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
- G03H2260/00—Recording materials or recording processes
- G03H2260/30—Details of photosensitive recording material not otherwise provided for
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Holo Graphy (AREA)
Abstract
Holographic recording medium (10) is made of two substrates (14,16) of recording layer (12), this recording layer of sandwich (12) and the photosensitive protective layer (18) that covers the integral body of these recording layers (12), substrate (14,16).Recording layer (12) is so that be set to the mode that long wavelength side descends from short wavelength side near this recording wavelength corresponding to the light sensitivity of recording wavelength; and photosensitive protective layer (18) is so that be set to the mode that short wavelength side descends from long wavelength side near recording wavelength corresponding to the light transmission rate of recording wavelength; thereby; recording sensitivity is reduced, and the damage that the environment exposure by recording layer is caused improve.
Description
Technical field
The present invention relates to a kind ofly be used for irradiating object light and come the holographic recording medium of recorded information by its interference fringe with reference to light.
Background technology
Before this, the recording materials that use in the recording layer of above-mentioned holographic recording medium comprise: write the dispensable mould material as erasable material such as light refraction material and as photopolymer etc.
Adopt the latter write the dispensable mould recording materials time, because by record (sensitization), specific photographic composition is irreversibly consumed, so, must before finishing, make it not by the light generation sensitization in the external environment condition (environment exposure) to the record on the whole recording medium.
For example, carry out record under the environment that must radiate hardly, or adopt the good box (cartridge) of light-proofness etc. to be protected at the light in the wavelength photoreceptor scope.
Under the environment of the light in not radiating the wavelength photoreceptor scope, when particularly writing light beam is visible light, must in the darkroom, carry out record, use recording medium and unpractical problem thereby exist as storage system.
In addition, when being protected with box etc., transportation, keeping and record under environment usually become easily the complexity but the structure of recording medium and system becomes.Particularly, except needs are provided with the cost of box, also need to be used to switch window freely that record-playback is passed through with light beam, in addition, open in order to write down window during, exposed by environment.Also have, because the relation of the position between window and the recording layer, beam incident angle and incoming position etc. is restricted, thereby the degree of freedom of optical design is lowered.Also have in addition, except the desired structure of the common record-playback of needs, also need to be used for control gear machinery or electric of the above-mentioned window of switch, accompany and the maximization of occurrence record medium or the problem of expensiveization thereby exist therewith.
As the countermeasure that addresses the above problem, put down in writing as the flat 7-181876 communique of TOHKEMY, proposing has a kind of optical characteristics to photosensitive material to carry out evolutionary approach.
Yet,, just can not become improvement in essence since be identical photochemical reaction with storage life (Shelf Life) as the record mechanism of data-carrier store.That is, there is the trade-off problem between following 2: if improve the recording sensitivity of recording materials, then shorten storage life, otherwise if improve the damage that exposes owing to environment, then recording sensitivity descends.
Problem to be solved by this invention is: improve the trade-off problem that can not take into account recording sensitivity and storage life in the holographic recording, thereby improve the storage life to the good recording medium of recording sensitivity.
Summary of the invention
The inventor finds: utilize the film with wavelength selectivity to wait selectively the light in the wavelength photoreceptor scope is carried out shading, thereby can improve above-mentioned trade-off problem.
That is,, can achieve the above object by following the present invention.
(1) a kind of holographic recording medium; has recording layer; and this recording layer shone the object light of same recording wavelength and with reference to light; and by coming recorded information in relating to striped; it is characterized in that; utilize photosensitive protective layer to cover above-mentioned recording layer; and; above-mentioned recording layer is so that this recording layer material is set to the mode that long wavelength side descends from short wavelength side near above-mentioned recording wavelength the light sensitivity of incident light, and above-mentioned photosensitive protective layer is so that the light transmission rate of incident light is set to the mode that short wavelength side descends from long wavelength side near above-mentioned recording wavelength.
(2) a kind of holographic recording medium; has recording layer; and this recording layer shone the object light of same recording wavelength and with reference to light; and come recorded information by interference fringe; it is characterized in that; utilize photosensitive protective layer to cover above-mentioned recording layer; and; above-mentioned recording layer is so that this recording layer material is set to the mode that long wavelength side descends from short wavelength side near above-mentioned recording wavelength the light sensitivity of incident light, and above-mentioned photosensitive protective layer is with respect to this recording wavelength being absorbed in as the long wavelength zone of certain wavelength coverage at center and short wavelength zone at least or the light in reflection short wavelength zone; and the mode of the light transmission in this certain wavelength coverage is set.
(3) according to the holographic recording medium of putting down in writing in above-mentioned (1) or (2); it is characterized in that above-mentioned photosensitive protective layer is made of the butt-end packing material of the peripheral end face of two substrates of the above-mentioned recording layer of sandwich, the peripheral end face between above-mentioned two substrates that covers above-mentioned recording layer and above-mentioned two substrates.
(4) according to the holographic recording medium of putting down in writing in above-mentioned (1) or (2); it is characterized in that above-mentioned photosensitive protective layer is made of two substrates of the above-mentioned recording layer of sandwich, the butt-end packing material that covers the peripheral end face between above-mentioned two substrates of above-mentioned recording layer.
(5) according to the holographic recording medium of record in above-mentioned (1) or (2), it is characterized in that above-mentioned recording layer is clipped in the middle by two substrates, and above-mentioned photosensitive protective layer covers above-mentioned recording layer and two substrates.
(6) according to the holographic recording medium of putting down in writing in above-mentioned (3) or (4); it is characterized in that; above-mentioned photosensitive protective layer has the bonding agent function when pasting above-mentioned recording layer on the aforesaid substrate; and in its material, being dispersed with light absorbing material, this light absorbing material is with respect to this recording wavelength being absorbed in as the long wavelength zone of certain wavelength coverage at center and short wavelength zone at least or the light in reflection short wavelength zone.
(7) according to the holographic recording medium of putting down in writing in above-mentioned (3) or (4), it is characterized in that, above-mentioned two substrates are by light absorbing material is dispersed in the optical glass material and the optical flat that forms constitutes, this light absorbing material is with respect to absorbing above-mentioned recording wavelength at least in as the long wavelength zone of certain wavelength coverage at center and short wavelength zone or the light in reflection short wavelength zone, and optionally makes the light transmission in this certain wavelength coverage.
Description of drawings
Fig. 1 is stereographic map holographic recording medium, that comprise part sectioned view in the first embodiment of the present invention.
Fig. 2 is with the relation between the transmitance of recording layer light sensitivity among above-mentioned first embodiment and photosensitive protective layer, the curve map of representing with the relation of they and record-playback wavelength.
Fig. 3 is as the transmitance of the sharp cut-off light filter of the photosensitive protective layer among above-mentioned first embodiment and the graph of relation of wavelength.
Fig. 4 is with the transmitance of the photosensitive protective layer among second embodiment and recording layer light sensitivity, the curve map of representing with the relation of they and record-playback wavelength.
Fig. 5 is stereographic map holographic recording medium, that comprise part sectioned view among the 3rd embodiment.
Fig. 6 is stereographic map holographic recording medium, that comprise part sectioned view among the 4th embodiment.
Fig. 7 is stereographic map holographic recording medium, that comprise part sectioned view among the 5th embodiment.
Fig. 8 is light transmission rate and the conversion light sensitivity that will use the concrete photosensitive material on recording layer, the curve map of representing with the relation of they and wavelength.
Fig. 9 is to use the absorbance of the concrete polymerization initiator on photosensitive protective layer and the graph of relation of wavelength.
Embodiment
Holographic recording medium achieves the above object by following structure: recording layer is capped by photosensitive protective layer; and; this recording layer is so that the light sensitivity corresponding to recording wavelength of this material is set to the mode that long wavelength side sharply descends from short wavelength side near above-mentioned recording wavelength; and above-mentioned photosensitive protective layer is so that be set to the mode that short wavelength side sharply descends from long wavelength side near recording wavelength corresponding to the light transmission rate of this recording wavelength; also have; above-mentioned recording layer is clamped by two substrates, and photosensitive protective layer covers this two substrates and recording layer.
First embodiment
Below, with reference to Fig. 1 holographic recording medium 10 in the first embodiment of the present invention is described.
This holographic recording medium 10 has following structure: recording layer 12; Two substrates 14,16 of this recording layer 12 of sandwich; The photosensitive protective layer 18 of the whole outer peripheral face of the substrate 14,16 under the state of covering sandwich recording layer 12.
This holographic recording medium 10 is, above-mentioned recording layer 12 shone the object light of same wavelength and simultaneously with reference to light, and come the recording medium of recorded information by its interference fringe.
As among Fig. 2 with shown in the symbol A, the material of above-mentioned recording layer 12 is so that the light sensitivity of incident light is set from the mode of short wavelength side to the rapid decline of long wavelength side near record (reproductions) wavelength X w.
In addition, above-mentioned photosensitive protective layer 18 is so that the light transmission rate of incident light is set to the mode that short wavelength side sharply descends from long wavelength side near above-mentioned recording wavelength λ w.
As the concrete material of above-mentioned recording layer 12, be to be recorded the light beam sensitization of wavelength X w and the material that produces small index modulation, adopt photopolymer usually.
This photopolymer as major component, still can comprise photopolymerization monomer, Photoepolymerizationinitiater initiater, bond thermal polymerization as required and forbid agent or visible light sensitizing coloring matter.
Above-mentioned photosensitive protective layer 18 does not preferably allow and is in the light transmission in the short and long scope of ripple than above-mentioned recording wavelength λ w wavelength; but; owing to will be at least do not allow than the short light transmission of recording wavelength λ w wavelength as its necessary condition, therefore can make the light transmission of long wavelength side yet.
Also have,, for example, adopt the sharp cut-off light filter (or chromatic filter) of expression optical characteristics in Fig. 3 as the concrete material of photosensitive protective layer 18.Specifically, SCF-52Y, SCF-50Y, SCF-48Y, the SCF-44Y that adopts Sigma Koki (シ グ マ Guang Machine) to make.
This sharp cut-off light filter is the light absorption material to be dispersed in the optical glass and the light filter that makes the light transmission of its long wavelength side that only makes specific wavelength, and above-mentioned recording wavelength λ w is set at above-mentioned specific wavelength.
In addition, in when record or the wavelength when reproducing be the light of λ w, can see through photosensitive protective layer 18, so record-playback is unquestionable.
Second embodiment
Below, to second embodiment, describe with reference to Fig. 4.
Photosensitive protective layer 18 among this embodiment is configured to: have as among Fig. 4 with the optical characteristics shown in the symbol B, and only make will the record (reproduction) wavelength X w as the light transmission in certain wavelength coverage at center.
The situation of above-mentioned second embodiment is also same with above-mentioned first embodiment, can not bring obstacle to record-playback, and photosensitive protective layer 18 can protect recording layer 12 not exposed by surround lighting.
In above-mentioned first embodiment, above-mentioned photosensitive protective layer 18 is configured to cover the integral body of two substrates 14,16 of recording layer 12 and this recording layer 12 of sandwich, but the present invention only is defined in this, can also adopt the structure shown in the three～five embodiment.
The 3rd embodiment
As shown in Figure 5, the holographic recording medium 20 among the 3rd embodiment is the recording medium of two substrate 22,24 double as photosensitive protective layers of sandwich recording layer 12.
Above-mentioned two substrates 22,24 are made of optical flat, this optical flat is light absorbing material is dispersed in the optical glass material and forms, and this light absorbing material has following characteristic: with respect in the long wavelength zone and short wavelength zone of above-mentioned recording wavelength λ w as certain wavelength coverage at center, at least absorb the light in short wavelength zone, and optionally make the light transmission in this certain wavelength coverage.
Above-mentioned relatively recording layer 12, substrate 22,24 has the size that exceeds from the peripheral end face of recording layer 12, and both gaps are filled by butt-end packing material 26, thereby constitutes photosensitive protective layer by this butt-end packing material 26 with substrate 22,24.
At this moment, because of butt-end packing material 26 does not allow writing light beam (recording wavelength is the light beam of λ w) see through, thus also can adopt the material same with above-mentioned photosensitive protective layer 18, or adopt the material of the whole light of blocking.
The 4th embodiment
As shown in Figure 6, holographic recording medium 30 among the 4th embodiment is, make the substrate 32,34 of sandwich recording layer 12 have the size same with recording layer 12, and with the circumferential lateral surface (four faces) of substrate under the state of sandwich recording layer 12 32,34 and recording layer 12, the recording medium that covers with butt-end packing material 36.
The 5th embodiment
As shown in Figure 7, holographic recording medium 40 among the 5th embodiment is, replace butt-end packing material 26 in the above-mentioned holographic recording medium 20 shown in Figure 5 with butt-end packing material 46 with binding function, and the recording medium of the bonding agent when recording layer 12 being sticked on the substrate 22,24.
The material of this butt-end packing material 46 is to disperse to form with above-mentioned same light absorbing material in having the resin of binding function, thereby it also has the sensitization defencive function after solidifying (bonding).
Perhaps, butt-end packing material 46 obstructed overwriting light beams are so also can adopt lighttight light absorbing material in the spectrum field of the wide scope of the wavelength X w that comprises this writing light beam.
Secondly, the concrete examples of material to above-mentioned recording layer 12 and photosensitive protective layer is illustrated.
Its transmittance when Fig. 8 represents to comprise photosensitive material that IRGACURE 784 that 1.5% Ciba Specialty Chemicals company (チ バ ス ペ シ ヤ リ テ イ ケ ミ カ Le ズ society) makes and thickness be 100 μ m as above-mentioned recording layer and the relation of conversion light sensitivity.
Here, (λ=when 532nm) carrying out record-playback preferably adopts the photosensitive material (referring to Fig. 8) that contains the IRGACURE 784 about 1.5% and as polymerization initiator with the 2nd higher hamonic wave of Nd:YAG laser.At this moment, if adopt SCF-52Y (A among Fig. 3) or SCF-50Y (B among Fig. 3) as photosensitive protective layer, the light of the wavelength side that cut-off 532nm is short expeditiously then, thus can suppress the reduction of storage life of causing by the environment exposure.
Also have, in Fig. 9, express the absorbance that contains 0.1%, 0.010%, 0.001% and polymerization initiator above-mentioned same IRGACURE784 (representing), and the relation of wavelength with A, B, C.
Because the absorbance of the A among Fig. 9 is the light in absorptance record-playback wavelength X w short wavelength zone expeditiously; therefore; if with the material of this polymerization initiator, and photosensitive material as shown in Figure 8 made up as recording layer, then can access characteristic as shown in Figure 2 as photosensitive protective layer.
When (λ=when 488nm) carrying out record-playback, the preferred employing contained 0.10% photosensitive material (A among Fig. 9) with IRGACURE 784 as polymerization initiator with the Ar ion laser.At this moment, if adopt SCF-48Y (C among Fig. 3) as photosensitive protective layer, the short wavelength sidelight of cut-off 488nm expeditiously then, thus can suppress the reduction of storage life of causing by the environment exposure.
Utilizability on the industry
The present invention can provide a kind of high performance holographic recording of taking into account recording sensitivity and storage life to be situated between Matter.
Claims (12)
1. a holographic recording medium has recording layer, and this recording layer is shone the object light of same recording wavelength and with reference to light, comes recorded information by interference fringe, it is characterized in that,
Utilize photosensitive protective layer to cover above-mentioned recording layer; and; above-mentioned recording layer is so that this recording layer material is set to the mode that long wavelength side descends from short wavelength side near above-mentioned recording wavelength the light sensitivity of incident light, and above-mentioned photosensitive protective layer is so that be set to the mode that short wavelength side descends from long wavelength side near above-mentioned recording wavelength the light transmission rate of incident light.
2. according to the holographic recording medium of claim 1 record; it is characterized in that; above-mentioned photosensitive protective layer is made of two substrates and the butt-end packing material of the above-mentioned recording layer of sandwich, and this butt-end packing material covers the peripheral end face between above-mentioned two substrates of above-mentioned recording layer and the peripheral end face of above-mentioned two substrates.
3. according to the holographic recording medium of claim 1 record; it is characterized in that; above-mentioned photosensitive protective layer is made of two substrates and the butt-end packing material of the above-mentioned recording layer of sandwich, and this butt-end packing material covers the peripheral end face between above-mentioned two substrates of above-mentioned recording layer.
4. according to the holographic recording medium of claim 1 record, it is characterized in that above-mentioned recording layer is clipped in the middle by two substrates, above-mentioned photosensitive protective layer covers above-mentioned recording layer and two substrates.
5. according to claim 2 or 3 holographic recording mediums of putting down in writing; it is characterized in that; the above-mentioned butt-end packing material of above-mentioned photosensitive protective layer has the bonding agent function when pasting above-mentioned recording layer on the aforesaid substrate; and in the material of above-mentioned photosensitive protective layer, be dispersed with light absorbing material, the light in the wavelength coverage that this light absorbing material absorbs at least or reflection is short in the wavelength coverage of comparing long wavelength coverage and weak point with above-mentioned recording wavelength.
6. according to claim 2 or 3 holographic recording mediums of putting down in writing, it is characterized in that, above-mentioned two substrates are made of the optical flat that light absorbing material is dispersed in the optical glass material, the light in the wavelength coverage that this light absorbing material absorbs in the wavelength coverage of comparing long wavelength coverage and weak point with above-mentioned recording wavelength at least or reflection is short.
7. a holographic recording medium has recording layer, and this recording layer is shone the object light of same recording wavelength and with reference to light, comes recorded information by interference fringe, it is characterized in that,
Utilize photosensitive protective layer to cover above-mentioned recording layer; and; above-mentioned recording layer is so that this recording layer material is set to the mode that long wavelength side descends from short wavelength side near above-mentioned recording wavelength the light sensitivity of incident light, and above-mentioned photosensitive protective layer is set as follows: in compare long wavelength coverage and short wavelength coverage with above-mentioned recording wavelength, absorb at least or wavelength coverage that reflection is short in light.
8. according to the holographic recording medium of claim 7 record; it is characterized in that; above-mentioned photosensitive protective layer is made of two substrates and the butt-end packing material of the above-mentioned recording layer of sandwich, and this butt-end packing material covers the peripheral end face between above-mentioned two substrates of above-mentioned recording layer and the peripheral end face of above-mentioned two substrates.
9. according to the holographic recording medium of claim 7 record; it is characterized in that; above-mentioned photosensitive protective layer is made of two substrates and the butt-end packing material of the above-mentioned recording layer of sandwich, and this butt-end packing material covers the peripheral end face between above-mentioned two substrates of above-mentioned recording layer.
10. according to the holographic recording medium of claim 7 record, it is characterized in that above-mentioned recording layer is clipped in the middle by two substrates, above-mentioned photosensitive protective layer covers above-mentioned recording layer and two substrates.
11. holographic recording medium according to claim 8 or 9 records; it is characterized in that; above-mentioned photosensitive protective layer has the bonding agent function when pasting above-mentioned recording layer on the aforesaid substrate; and in the material of above-mentioned photosensitive protective layer, being dispersed with light absorbing material, this light absorbing material absorbs or reflects the light in the wavelength coverage of above-mentioned weak point at least in the wavelength coverage of the wavelength coverage of above-mentioned length and above-mentioned weak point.
12. holographic recording medium according to claim 8 or 9 records, it is characterized in that, above-mentioned two substrates are made of the optical flat that light absorbing material is dispersed in the optical glass material, this light absorbing material absorbs or reflects the light in the wavelength coverage of above-mentioned weak point at least in the wavelength coverage of the wavelength coverage of above-mentioned length and above-mentioned weak point, and optionally makes the light transmission of this recording wavelength.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004001957A JP2005195862A (en) | 2004-01-07 | 2004-01-07 | Holographic recording medium |
| JP001957/2004 | 2004-01-07 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1902553A CN1902553A (en) | 2007-01-24 |
| CN100547500C true CN100547500C (en) | 2009-10-07 |
Family
ID=34747009
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004800400329A Expired - Fee Related CN100547500C (en) | 2004-01-07 | 2004-12-20 | Holographic recording medium |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US7304774B2 (en) |
| JP (1) | JP2005195862A (en) |
| CN (1) | CN100547500C (en) |
| WO (1) | WO2005066721A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5115126B2 (en) * | 2007-10-05 | 2013-01-09 | Ｔｄｋ株式会社 | Hologram recording medium |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63287878A (en) * | 1987-05-21 | 1988-11-24 | Canon Inc | Adhesive or tacky type hologram |
| JP2648593B2 (en) * | 1987-05-21 | 1997-09-03 | キヤノン株式会社 | Method of manufacturing transfer hologram |
| US4908285A (en) * | 1987-05-18 | 1990-03-13 | Canon Kabushiki Kaisha | Hologram member |
| JPH07181876A (en) | 1993-12-24 | 1995-07-21 | Toyo Ink Mfg Co Ltd | Hologram recording material, hologram recording medium and production of hologram using the same |
| TWI246682B (en) * | 2003-06-30 | 2006-01-01 | Prodisc Technology Inc | Holographic data storage medium |
-
2004
- 2004-01-07 JP JP2004001957A patent/JP2005195862A/en active Pending
- 2004-12-20 CN CNB2004800400329A patent/CN100547500C/en not_active Expired - Fee Related
- 2004-12-20 US US10/584,130 patent/US7304774B2/en not_active Expired - Fee Related
- 2004-12-20 WO PCT/JP2004/019042 patent/WO2005066721A1/en active Application Filing
Also Published As
| Publication number | Publication date |
|---|---|
| US7304774B2 (en) | 2007-12-04 |
| WO2005066721A1 (en) | 2005-07-21 |
| CN1902553A (en) | 2007-01-24 |
| US20070146839A1 (en) | 2007-06-28 |
| JP2005195862A (en) | 2005-07-21 |
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